why there is a lightningstrikerecord.txt file at Device Flash

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The S2700 device automatically generates this file in Flash after a single lightning strike, which records the total number of times which the device has occurred and the last 5 occurrences of the exception.

Other related questions:
How is the lightningstrikerecord.txt file in the flash memory of the S2700 generated
A device automatically generates this file in the flash memory after a lightning strike. The file records the total number of exceptions and the time when the latest five exceptions occur.

How can I clear logs on a WLAN device
Logs generated on a WLAN device are saved in the log buffer. After the number of logs reaches the specified threshold, the logs are saved to the syslogfile or logfile folder in the device's flash memory. When the WLAN device has been running for a long time, it generates a large number of logs. In this case, you can run the info-center max-logfile-number command to set the maximum number of logs to be saved on the device. You can clear all logs in the buffer and the flash memory. 1. Clear logs in the log buffer or trap buffer. - Run the reset logbuffer command in the user view to clear logs in the log buffer. - Run the reset trapbuffer command in the user view to clear traps in the trap buffer. 2. Clear log files in the flash memory. Run the delete command in the user view to delete log files in the flash memory. To delete logs in the logfile folder, perform the following operations: - delete flash:/logfile/xxx //Delete a log record. xxx specifies the log file name saved in the flash memory. - delete /unreserved flash:/logfile/xxx //Permanently delete a log record, which cannot be restored. - reset recycle-bin //Empty the recycle bin.

How is the V200R001C01 flash file system improved
The self-check function is added. Files are deleted in the background. File read/write performance is improved.

Why cannot I import a file from an external USB flash drive to eSpace 7950
The file to import is not placed in the root directory of the USB flash drive (USB 2.0). If you want to operate the phone LCD screen to import a file, the file must be placed in the root directory of the USB flash drive. The remaining storage space of eSpace 7950 is insufficient. The file type is not selected correctly. eSpace 7950 supports .wav ring tone files, .jpg, .gif, .bmp, and .rgb wallpaper files, and .csv and .vcf contact person files.

Why does the size of a file change after the file is uploaded to a device through FTP
The FTP protocol supports two file transfer modes: ASCII and binary. The ASCII mode is used to transfer text files, and the binary mode is used to transfer compressed files, databases, system software, and other program files. When the ASCII mode is used, some content is automatically converted during file transfer. Therefore, the file size changes after it is uploaded to the device.

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